I imagine lying is pretty cut-and-dried, but padding seems to me to be in the eye of the beholder. For example, my GPS reports my average speed -- but it's for the time that I'm actually moving. Stopping for a drink or to give my behind a rest or even taking a lunch break isn't included. I sort of think that the number of miles covered divided by the actual wall clock elapsed time is a more "honest" report of how many miles per hour I rode. I'm sure others would view the matter differently, and I am loathe to say that they are lying. While the two numbers are quite different for any decent ride that I take, they are both accurate in their own way.